Who gets turned down?

Where I work, we get a lot of organ transplants. I love that patient population. They're my favorites actually. I think organ transplant is an amazing and miraculous advance of modern medicine. But organs are a scarce and precious commodity. Thus, there are rules in place that govern the allocation of organs and who gets a new organ. Not only does the potential recipient have to qualify medically under strict guidelines, but they also have to qualify from a psychosocial standpoint. This is to ensure that the scarce commodity that is that organ is not squandered. Being a transplant recipient is a lot of work, even and especially after being discharged from the hospital.

Mr. N is one of our recent kidney transplant recipients. Medically, he was an appropriate candidate for this new kidney. But the more I learned about him throughout his stay, I became more and more shocked that he qualified with his psychosocial background.

1. He is illiterate. 
• Literacy is important, especially for managing medication at home. Transplant medications are complex and the regimen must be follow strictly. 
2. He is estranged from most of his family, including three ex-wives and multiple children who he's "cut out of his life." His visitors were restricted to the one daughter he was not estranged from and his girlfriend.
• A recipient needs support, basically for life. Someone needs to be intimately aware of the potential complications that the patient faces, when to get the patient to the hospital, when to call a doctor, their medication regimen, etc, etc, etc. This takes on more importance when #1 is in play.
3. He's homeless. He lost his trailer recently when it was foreclosed upon. He's been sleeping on couches and in his car. 
• Maintaining health, especially after a transplant, is expensive. I'm inferring from this series of events that his financial portfolio isn't exactly sound. The concern here is that a transplant recipient's life-sustaining medications could fall to the wayside in lieu of other financial responsibilities. I've seen that happen with people who are much more financial stable. Direct path to rejection of said organ.
4.  He might be going to jail. For reals. He'd been found guilty of a crime and is out on bail, awaiting sentencing. The way I understand it, he could get anything from probation to a 4 year jail sentence.
• I feel like the problem with this one is pretty self-explanatory.

I realize that I sound like an elitist who is judging this man. I'm really not. I just want our transplants to succeed in the long term. Hard decisions need to be made to ensure the highest likelihood of success of the transplant. Tough love?

But my real question is, if this guy didn't get turned down... what's going on with guys who do get turned down?!